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API 2500 Stereo Bus Compressor

API 2500 Stereo Bus Compressor

Brand: API

Regular price £1,750.00 GBP | Inc.VAT: £2,100.00 GBP
Regular price £1,950.00 GBP Sale price £1,750.00 GBP
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Dual channel/stereo compressor switchable between “feed back” and “feed foward” operation. Uses API’s patented THRUST circuit for a chest-hitting, punchy bottom end.

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Product Description

API 2500 Stereo Compressor for sale.

Tested and in full working order. Supplied with 3 month warranty.

More information from the API website (where you'll also find the manuals etc):


  • API 2520 Op Amp

  • Variable threshold between -20dBu and +10dBu

  • Selectable ratio, attack and release times

  • Patented THRUST® selectable high-pass filter before RMS detector

  • Variable link between left and right channels

  • Old "feed back" or new "feed forward" compression

  • Soft, medium or hard knee for easy to sharp compression

  • Auto or manual gain make up

  • 1/4" balanced side chain inputs

  • Output clips at +28dBu

The API 2500 Stereo Bus Compressor allows adjustment of sonic qualities to alter the punch and tone of the stereo mix. One of the 2500's notable qualities is its use of API's patented THRUST circuit for a chest-hitting, punchy bottom end. The 19-inch, rack-mountable unit boasts a dual-channel design that can be configured for stereo compression or for use as two separate units via a single compression setting.

Another unique feature of the 2500 is its selectable "old" or "new" compression. The old style uses the "feed back" type of compression found in the API 525, while the new style uses a "feed forward" type in which the compressor side chain is fed directly from the unit input. Additionally, the output stage exhibits an auto-makeup gain button that permits the user to vary the threshold or ratio while automatically maintaining a constant output level. Further, the 2500 ensures fidelity with its fully balanced design with two front panel VU meters showing input, output and gain reduction levels.


In excellent cosmetic condition with minimal signs of wear to the face. The case is clean with some rack rash on the top. Please see photos or get in touch if you require more information on condition.

Voltage Information

Switchable voltage for use anywhere in the world.


For sales in UK the price will include 20% VAT. Buyers elsewhere may incur VAT or other local taxes on import.

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